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From: "ahmedsayeed1982 at yahoo dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/26828] SIGSEGV in follow_die_offset dwarf2/read.c:22950
Date: Sun, 27 Jun 2021 17:58:07 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26828

Ahmed Sayeed <ahmedsayeed1982 at yahoo dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ahmedsayeed1982 at yahoo d=
ot com

--- Comment #32 from Ahmed Sayeed <ahmedsayeed1982 at yahoo dot com> ---
The first call returns "frame" and "variables" information.
The second call returns just the "variables".
The third call segfaults in "follow_die_offset" (dwarf2/read.c:22950).

The segfaulting line reads:
   target_cu->ancestor =3D cu;

target_cu is apparently 0.

I can reproduce the issue with current master
(e1f57067b162cba9f39e087726c7a2f2cfaae96f) too.
http://pitesti.online/
With GDB 9.1 the third (and subsequent) calls don't seem to segfault.

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